MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa421056287f6114a5932fc6fe92734a06fb0760567b1086774d25881b6bf4a1. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


CryptBot


Vendor detections: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aa421056287f6114a5932fc6fe92734a06fb0760567b1086774d25881b6bf4a1
SHA3-384 hash: 20302d8107d411299bbbdf100a3e4c29d4f0e94f1cee6f79df9c72d541907080c0ad7f6c45675375b850be56c86c5d86
SHA1 hash: 93f7e0d18cda291de56f04e2ad35fff64446eb62
MD5 hash: 15a46db0313993e635e8a7f4ae91f44a
humanhash: mirror-mike-carolina-potato
File name:file
Download: download sample
Signature CryptBot
Create hunting rule
File size:4'384'256 bytes
First seen:2024-11-23 17:23:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 98304:6n5gcY8GUa9kLQ2mhJoIboO1eIRkMIIl2N6XN+D:6dL0OQTAIUO1TrIIl20XYD
TLSH T1F61633FB1FFE9AD7C8961B390F46589145786F8E4902D226FF029243CA3A8DF1C611E4
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.5% (.EXE) Win32 Executable (generic) (4504/4/1)
8.4% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Bitsight
Tags:CryptBot exe


Avatar
Bitsight
url: http://31.41.244.11/files/random.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
407
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-23 17:31:03 UTC
Tags:
themida stealer cryptbot crypto-regex
Link:
https://app.any.run/tasks/507290ca-c408-4cc8-b804-b5d72efdf4e6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Evo-gen.23387.29336.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67421120b31374f09833dbd6
Tags:
phishing autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
Connection attempt to an infection source
DNS request
Creating a window
Connection attempt
Query of malicious DNS domain
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
crypto packed packed packer_detected
Link:
https://www.filescan.io/uploads/67420fb4833bbef601e83466/reports/d0e479ae-14b6-43f6-a10d-4272f6fa1dd8/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/aa421056287f6114a5932fc6fe92734a06fb0760567b1086774d25881b6bf4a1
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/91bdad6b-81d5-4e73-95f9-504789d34132
Result
Threat name:
Clipboard Hijacker, Cryptbot
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1561550
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Attempt to bypass Chrome Application-Bound Encryption
Drops large PE files
Found evasive API chain (may stop execution after checking mutex)
Found stalling execution ending in API Sleep call
Hides threads from debuggers
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Sigma detected: Suspicious Scheduled Task Creation Involving Temp Folder
Suricata IDS alerts for network traffic
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Clipboard Hijacker
Yara detected Cryptbot
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1561550 Sample: file.exe Startdate: 23/11/2024 Architecture: WINDOWS Score: 100 48 Suricata IDS alerts for network traffic 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 6 other signatures 2->54 7 file.exe 5 3 2->7         started        12 service123.exe 2->12         started        14 service123.exe 2->14         started        process3 dnsIp4 36 fvtekk5pn.top 34.116.198.130, 49704, 49727, 49733 GOOGLE-AS-APGoogleAsiaPacificPteLtdSG United States 7->36 38 127.0.0.1 unknown unknown 7->38 40 home.fvtekk5pn.top 7->40 30 C:\Users\user\...\unmYCIPOHmXNjqOesrEy.dll, PE32 7->30 dropped 32 C:\Users\user\AppData\...\service123.exe, PE32 7->32 dropped 56 Attempt to bypass Chrome Application-Bound Encryption 7->56 58 Tries to detect sandboxes and other dynamic analysis tools (window names) 7->58 60 Uses schtasks.exe or at.exe to add and modify task schedules 7->60 62 7 other signatures 7->62 16 service123.exe 7->16         started        19 chrome.exe 7->19         started        22 schtasks.exe 1 7->22         started        24 WerFault.exe 19 12 7->24         started        file5 signatures6 process7 dnsIp8 42 Multi AV Scanner detection for dropped file 16->42 44 Found evasive API chain (may stop execution after checking mutex) 16->44 46 Found stalling execution ending in API Sleep call 16->46 34 239.255.255.250 unknown Reserved 19->34 26 chrome.exe 19->26         started        28 conhost.exe 22->28         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aa421056287f6114a5932fc6fe92734a06fb0760567b1086774d25881b6bf4a1/
Threat name:
Win32.Trojan.Amadey
Create hunting rule
Status:
Malicious
First seen:
2024-11-23 17:24:05 UTC
File Type:
PE (Exe)
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vjbbavrip5qrjjmtf7dp5ettjidpwb3akz5rbbtxjusyqg3l6sqq._file
Result
Malware family:
cryptbot
Create hunting rule
Score:
  10/10
Tags:
family:cryptbot credential_access discovery evasion spyware stealer
Link:
https://tria.ge/reports/241123-vyp1vsymaz/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks installed software on the system
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Identifies Wine through registry keys
Loads dropped DLL
Reads user/profile data of web browsers
Uses browser remote debugging
Identifies VirtualBox via ACPI registry values (likely anti-VM)
CryptBot
Cryptbot family
Detects CryptBot payload
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/63059acc-f715-4a5a-a6a4-e3630e29678b
Unpacked files
SH256 hash:
ceb86df8919ea984311f403ea01843af7dbdb2fae8451774b93055e38351a968
MD5 hash:
736f95e3808272809f87ab71a5fffc2d
SHA1 hash:
59d558bfe0f9cae35862e37607909ef220509200
Link:
https://www.unpac.me/results/bb0a4dac-cdbb-4a2d-abbe-c99a8a611819/
SH256 hash:
aa421056287f6114a5932fc6fe92734a06fb0760567b1086774d25881b6bf4a1
MD5 hash:
15a46db0313993e635e8a7f4ae91f44a
SHA1 hash:
93f7e0d18cda291de56f04e2ad35fff64446eb62
Link:
https://www.unpac.me/results/bb0a4dac-cdbb-4a2d-abbe-c99a8a611819/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/aa421056287f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/aa421056287f6114a5932fc6fe92734a06fb0760567b1086774d25881b6bf4a1

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

CryptBot

Executable exe aa421056287f6114a5932fc6fe92734a06fb0760567b1086774d25881b6bf4a1

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3253370/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical

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